Filter



(No Model.)

, J. WAESP'I, E. RETZ,v J. SPELLMAN & J. PREY.

FILTER,

' PatentedN0v.15,188'7.

TORS;

IN VEN of Dallas, in the county of Dallas and State of bottom of whichis held a perforated pipe, F,

Filter, of which the following is a full, clear,

- is a vertical cross-section of the gravel-cham- ',ply pipe G, having avalve, G, for regulating UNITED STATES PATENT OFFICE.

JACOB \VAESPI, EMIL FRETZ, JOHN SPELLMAN, AND JOHN FREY, OF

DALLAS,

TEXAS.

FILTER.

SPECIFICATION forming part of Letters Patent No. 373,257,

Application filed March 31. 1887.

12 all whom it may concern.- Be it known that we, JACOB WAEsrI, EMILFnnrz, JOHN SPELLMAN, and JOHN FREY, all

Texas, have invented a new and Improved and exact description.

The object of our invention is to provide a new and improved filter forpurifying water intended for the use of cities, towns, &c.

The invention consists of various parts and details and combinations ofthe same, as will be'fully described hereinafter, and then pointed outin the claim.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicate.corresponding parts in all thefigures.

Figure l is a plan viewof ourimprovement, showing a double filter. Fig.2 is a longitudinal sectiouals elevation of the same on the line a: w ofFig. 1. Fig. 3 is a vertical cross-section of the basinon the line y yof Fig. 1. Fig. 4

her on the line z z of Fig. 1, and Fig. 5 is a vertical cross-section ofthe receiving-chamber on the line u u of Fig. 1.

In the construction of our improved filter we'inay employ only onefilter; but we prefer to arrange two or more filters alongside of eachother, each working independently of the others, but being alike inconstruction.

In the drawings we show two filters, A A, which are placed alongsideeach other and separated by a longitudinal partition-wall, B. Thefilters are built of suitable material and placed on agood foundation ofmasonry. Each filter A consists of a receptacle, 0, placed in aninclined position, and of an exit-basin, D, located horizontally at thefoot of the receptacle C. The receptacle 0 is provided on its upper endwith a receiving-chamber, E, in the provided with a valve, F, andconnected by the branch pipe F with the main water -supthe llow of waterinto the branch pipes F. A drain-pipe, E, leads to the outside from thelower end of thereeeiving-chamberE through one of the side walls of thesame. 'This' pipe E is provided at its outer end with a valve.

dated November 15,.13 7,

Serial No. 233.163. (No mndehl The lower wall, E, of the receivingchamber E is somewhat less in height than the chamher-walls, so that thewater flows over the lower wall, E, into the settling-chamber H,

provided on its lower end with a drain-pipe, H, and with a lower endwall, H, over which the water flows into the gravel -chamber I,

which is filled with clean gravel entirely free In this chamber 1' arearranged, .6

from sand. at suitable intervals, theftransverse wedgeshaped ridges I,on which the impurities of the water accumulate, which impurities aredrawn off, whenever desired, by the drain-pipe I, connected with eachridge and leading to ing and settling chambers E and H is to break theflow and the rush of the water, so that it 90 passes quietly intothegravel-chamber I, in which it passes through the gravel, which deprivesit of its impurities, which settle on the bottom, principally againstthe ridges I. The

impurities settling alongside the ridges I can be drawn ofi" .wheneverdesired through the drain-pipes I. The perforated plate Ip'ermits thepassage through it of' the water into the basin D, in which the water,should it possess a disagreeable odor, is deprived of the same inpassing through the charcoal-box'J, and it finally enters the mainoutlet-pipe K in a pure and healthy state.

The several chambersof each filter can easily.

be cleaned by closing the valve F, thusshutting 9 5 oh the supply ofwater, and then the several .drain-pipes E, H, I", and D are opened, so

that the waterin the several chambers is drawn off. The chambers E H andthe basin D are cleaned by the use of a hose, L, connected with too aplug, N, on the branch pipe F.

In order toclean the gravel-ehamber I, it is neeeseery that part of thegrm el in the upper part of the chamber should be removed,- and theremaining part is washed by the hose L, as illustrated in Fig. 1. Y Theimpuritieson the 5 bottom settle against the first ridge and pass amtthmcgtrthe first drain-pipe, I, connected with the said ridge. Thegravel is then repiaeed, and the followingsections of the chemher I arewashed in the same manner, if nect0 essary. The arrangement shownin thedrawing permits ofr'ieaning one of the filters 'while weather isworking.

Having'thus fully described our invention,

we claimasnew' and desii'exo secure by Letters 5 Patent- The filtercansisting of the receptacle having the receiving, settling, andfiltering chamhers, in the bottor'nof which filtering chamber are formedtransverse wedge shaped ridges,

and at the bottoms of the receiving, settling, 20

and filtering chambers and of the basin are arranged outlet-pipes, whichreceiving, set-. tling, and filtering chambers are separated from oneanother by walls or pfirtitions pfsuccessively varying orlesser'heights, and which 25 basin is arranged lower than the filteririg-chamber, together with a branched supply-pipe connecting with valvedperforated pipes 'arranged in the receiving-chamber, substantially asend'for the purpose specified.

JACOB WAESPI.

EMIL FBETZ. JOHN SPELLMAN.

